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Meaning of Android Studio error: Not annotated parameter overrides @NonNull parameter
I'm trying out Android Studio. Upon creating a new project and adding a default onSaveInstanceState method to the create MyActivity class, when I try to commit the code to Git, I get a strange error I don't understand. The code is this:
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How to prevent the activity from loading twice on pressing the button
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Add this to your Activity definition in AndroidManifest.xml...
android:launchMode = "singleTop"
For example:
<activity
android:name=".MainActivity"
android:theme="@style/AppTheme.NoActionBar"
android:launchMode = "singleTo...
Bad class file magic or version
...this error message when compiling a pure java module as a dependency of my android project.
build.gradle of the java module
apply plugin: 'java'
Solution #1: Quick an dirty
I fixed it by setting my JAVA_HOME back to 1.7:
export JAVA_HOME=`/usr/libexec/java_home -v 1.7`
Solution #2: change co...
How to get current time and date in Android
How can I get the current time and date in an Android app?
40 Answers
40
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Android webview & localStorage
... same :) thanks a lot. I also had to make sure you target at least Android 2.1 onwards: add android:minSdkVersion="7" to your manifest and change the Project Build Target (in eclipse) to be 2.1 at least.
– danmux
Nov 19 '11 at 18:49
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Android mock location on device?
...n the development panel in your settings and add
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
to your manifest.
Now you can go in your code and create your own mock location provider and set the location of this provider.
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/data/user/0/xxxx/files（内部存储）和 /storage/emulated/0/Android/data...
来源：DeepSeek回答结果。
在 Android 中，/data/user/0/xxxx/files（内部存储）和 /storage/emulated/0/Android/data/xxxx/files（外部存储的私有目录）都是应用的私有存储空间，但它们在存储位置、访问方式、权限要求等方面有显著区别。以下...
Get Android .apk file VersionName or VersionCode WITHOUT installing apk
...t programmatically get the version code or version name of my apk from the AndroidManifest.xml file after downloading it and without installing it.
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Mipmap drawables for icons
Since Android 4.3 (Jelly Bean) we can now make use of the res/mipmap folders to store "mipmap" images.
11 Answers
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INSTALL_FAILED_NO_MATCHING_ABIS when install apk
I tried to install my app into Android L Preview Intel Atom Virtual Device, it failed with error:
24 Answers
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